"Running MySQL Queries Through a MySQL Socket" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
CitedTravel gives AI agents and developers travel facts they can cite. It covers plug types and voltage, currency, emergency numbers, driving side, public holidays (3 years) and tipping norms for 195 countries, plus a visa/entry pilot for GB, US and JP passport holders. Every value comes with its sources (publisher, URL, license, verbatim quote), a last-verified date and a 0-1 confidence score with reasons. Data comes only from sources that allow commercial reuse, such as Wikidata, Unicode CLDR, UK FCDO, the US State Department and Japan MOFA. Entry answers quote official government pages and are decision support, never a go/no-go verdict. Remote MCP server (Streamable HTTP, 9 read-only tools) and REST API (OpenAPI 3.1). Answers in English, Japanese, Simplified and Traditional Chinese. Free: static facts need no key; a free key adds 1,000 calls/month. Paid: Builder $19/month, Pro $99/month, or x402 pay-per-call in USDC on Base.
Check the factual claims in a draft or an answer: a quick verdict, or a deep check with sources.
DC Hub is the live data layer for data-center siting that agents can query and cite. Its Data Center Power Index (DCPI) scores where data centers can get grid power across 300+ markets daily. Also 330,000+ mapped power, grid, gas and fiber assets. 94 MCP tools at https://dchub.cloud/mcp plus a REST API at https://dchub.cloud/api/v1. Free tier needs no key; paid plans: dchub.cloud/pricing.
2025 US FHA mortgage record statistics, with a gate that checks AI sentences preserve the evidence
Queries ArXiv for AI/CS/math papers and returns structured abstracts, authors, PDF links, and BibT
Google Trends interest over time, by region, and related queries and topics, as JSON.
Public-domain Bible text (WEB and KJV), reading plans and a daily devotional. Read-only.
Search and read Edgepedia, a free and growing encyclopedia with citations. No key.
Nutrition facts for 24,000+ menu items of 100+ Japanese restaurant chains (kcal, PFC, salt, vitamins), each with the chain's source document. Search items, total a meal, and request missing chains.
Search UK Find a Tender notices. 3 free calls/day per IP; paid x402 MCP calls cost 0.01 USDC.
Does this retailer take offers, and does it price match? Verified answers from the retailer's own published policy, checked by a person. Four read-only tools (will_price_match, price_policy, retailers_that_price_match, can_make_offer), no sign-in, 5,307 retailers in 20 countries, data CC BY 4.0. Docs: https://registry.bidit.com.au/for-assistants
China A-share market data over MCP: 22 tools for quotes, K-line, financials, money flow, top-trader boards, sectors, macro, convertible bonds and factor screening. Five tools need no API key, so you can connect and try it immediately.
Buyer-side fair-price checks for Japanese renovation quotes; cost data is on a separate server.
Verify a US company is registered and active from official state registry open data.
Romanian insolvency intelligence for your AI agent: every company in the Insolvency Proceedings Bulletin (BPI) since 2006, creditor tables, auctions, claim deadlines, and a watchlist with alerts.
64 individually priced Chinese company data tools at 0.011 USDC per call via remote MCP/x402 on Base; 68 MCP definitions total. Legacy Basic (3 modules, 0.032 USDC) and Full (9 modules, 0.093 USDC) remain separate packages. Additional HTTP x402 products, NOT new MCP tools: Standard screening 0.29 USDC (ten Jinghai checks, JSON plus Chinese/English HTML); Enhanced screening 0.59 USDC (the same ten checks plus exactly one QCC qualifications check); QCC qualifications 0.03 USDC (normalized JSON, up to 30 records, no screening analysis). Product guide: https://yangchunhong3000.github.io/cn-evidence-public-docs/products.html Discovery is free; data queries require a funded Base USDC wallet and explicit x402 spending approval. Plain MCP clients do not pay automatically. Most V3 company tools require company_id from company_detail; record details use record_id from a matching, separately paid parent list. New paged lists return at most five first-page rows; legacy lists at most ten. No automatic pagination, top-up, retry or repayment. Provider balance and service availability apply. Selected records and limited-scope screening only: empty is not no risk; statistics/trends are not detailed records. No complete due diligence, human review, factory verification or supplier-safety guarantee. Native MPP is paused. Internal owner-funded HTTP company-detail, Standard and old QCC v1 samples passed paid delivery/recovery checks. The later QCC v2 funding-policy revision has offline/isolated and unsigned checks, not a fresh funded acceptance. These tests are not customer sales or certification of every tool or MCP client. Live products: https://api.cnevidence.com/free/cn/products
US ISO interconnection queues and cited energy data. 25 free queries, then $49/mo or $490/yr.
Find the organization behind a MAC address or OUI prefix in the IEEE registries. No auth, no key.
Open AI Visibility Index for crypto and Web3. Weekly share-of-answer measurements for 24 tracked brands across ChatGPT, Perplexity and Gemini, from a frozen versioned prompt panel. Five read-only tools: full index, per-brand lookup, brand list, complete measurement history and methodology. No auth, no API key. Data is CC BY 4.0 with a permanent archive of every weekly snapshot, so any figure can be verified independently.
Open AI Visibility Index for SaaS and AI tools. Weekly share-of-answer measurements for 20 tracked brands across ChatGPT, Perplexity and Gemini, from a frozen versioned prompt panel. Five read-only tools: full index, per-brand lookup, brand list, complete measurement history and methodology. No auth, no API key. Data is CC BY 4.0 with a permanent archive of every weekly snapshot, so any figure can be verified independently.
